[Piglit] [PATCH 5/7] glsl-fs-frontfacing: Simple test of gl_FrontFacing using shader_runner.

[Eric Anholt]

---
 tests/shaders/glsl-fs-frontfacing.shader_test |   26 +++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)
 create mode 100644 tests/shaders/glsl-fs-frontfacing.shader_test

diff --git a/tests/shaders/glsl-fs-frontfacing.shader_test b/tests/shaders/glsl-fs-frontfacing.shader_test
new file mode 100644
index 0000000..8263144
--- /dev/null
+++ b/tests/shaders/glsl-fs-frontfacing.shader_test
@@ -0,0 +1,26 @@
+[require]
+GL >= 2.0
+GLSL >= 1.20
+
+[vertex shader]
+void main()
+{
+	gl_Position = gl_Vertex;
+}
+
+[fragment shader]
+void main()
+{
+	gl_FragColor = vec4(0.0,
+			    float(gl_FrontFacing),
+			    1.0 - float(gl_FrontFacing),
+			    0.0);
+}
+
+[test]
+draw rect -1 -1 2 1
+draw rect 1 0 -2 1
+relative probe rgba (0, 0) (0.0, 1.0, 0.0, 0.0)
+relative probe rgba (1, 0) (0.0, 1.0, 0.0, 0.0)
+relative probe rgba (0, 1) (0.0, 0.0, 1.0, 0.0)
+relative probe rgba (1, 1) (0.0, 0.0, 1.0, 0.0)
-- 
1.7.5.1